Door-operating mechanism for ore-cars.



PATENTED APR. 7, 1908.

G. C. JOHNSDN. DUOR OPERATING MEGHANISM FOR ORE GARS.

APPLIOATIONIILBD MIB, 1907.

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GEORGE C. JOHNSON, OF LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE-HALF TOHENRY LANGE, OF LOS ANGELES, CALIFORNIA.

Specification of Letters Patent.

Patented April 7, 1908.

Application filed May 8, 1907. Serial No. 372,475.

To all whom it may concern.'

Be it known that I, GEORGE C. JOHNSON, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Door-OperatingMechanism for Ore-Cars, of which the following is a specification.

My invention is embodied in the following device for positivelyTkopening and closing swinging doors or gates of ore cars or the like andconsists of a pair of composite locking levers, one lever on each sideof the body of the car and each composite lever being composed of threeilat bars of steel or iron, these ars being pivotally secured together,the other ends of these bars being pivoted one to the body of the car,one to the truck thereof and the other one to the swinging door in thefront end of the body of the car.

The object of my invention is to provide simple and efficient meanswhereby the swinging doors on the bodies of ore cars or the like will bepositively opened and closed l when the car body is` tilted.

I accomplish this object by means of the device described herein andillustrated in the accompanying drawings, in which:--

Figure 1.-is a side elevation of an ore car equip ed with my improveddoor opening and c osing device, partly broken away and partly insection, the car being in its normal orizontal position and the doorclosed. Fig. 2.is a perspective view of an ore car equipped wit mydevice in its dumping position, the door being open. Fig. 3.-is anenlarged detail in perspective of the operating levers partly brokenaway.

The body 5 of the car is pivotally secured to the truck 6 by the hinge7. The upper leaf 8 of the hinge is bolted to the bottom of the body,while the lower leaf 9 of the hinge is swivelly secured to the top ofthe truck by the pintle bolt 10, the hinge being thus secured affordsmeans by which the body can be swung in any direction horizontally andtilted. A composite operating lever 11 composed of members 12, 13 and 14provides means whereby upon tilting the body into the position shown inFigi 2 (its unloading position) the swinging door 15 will be thrown intoits open position and when the body of the car is returned to itshorizontal position as shown in Fig. 1, it automatically closes the doorbecause of the manner in Which the 417 to the top of the body of thecar.

`member and the front end being pivotally secured to the middle of thedoor while the lower end of the top or body member 14 is pivoted to theupper end of the truck member 12 below the point where door or frontmember is pivoted, the upper end of the body member being centrallypivoted ashat T is composite locking lever will upon moving the body ofthe car forwardly cause the rear end of the body to rise and the frontend to descend and open the door, depressing the rear end will close thedoor while the body is moving from its emptying or open position to itshorizontal or closed position. On the upper end of the truck member isan inturned extension 19 which forms an engaging lug to contact with thebody member (see Fig. 2.) and limits the tilting movement of the body ofthe car, and also limits the opening movement of the door and serves tohold the door open. At the rear end of the car is the body engaging dog18 adapted to detachably hold the body of the car in its horiother atone of their ends, the other ends of these members being pivoted asfollows, one to the body of the truck, one to the body of the car andthe other to the swinging door.

2. An operating lever to operate doors of ore cars, comprising threemembers, a top or body member, a bottom or truck member, a front or doormember, these membersbeing pivotally secured each to the other at one oftheir ends as follows, the door and body members being attached to thetruck member, the door member being attached at a point on the truckmember above the point Where the top member is attached, the other endsof these members being pivotally attached as follows, the body memberbeing attached to the body of the car, the truck member to the frame ofthe truck and the door member to the door of the car.

3. An ore car having a swinging door hinged on the top of the front endof the body, a companion pair of locking levers, one on each side of thebody of the car, each of said levers being composed of three memberspivotally secured each to the other at one of their ends and pivotallysecured at their other ends one to the body of the car, one to the frameof the truck and one to the swinging door, the door member beingattached to the truck member at a point on the truck member above wherethe body member is attached to the truck member.

4. Means to automatically open and close a door swingingly secured tothe front of an ore car or the like, comprising a companion pair ofcomposite operating levers, one on each side of the body of the oar,said composite lever having three members, a rear, a

front and a top member, the rear member being pivotally secured at itslower end to the truck of the car, the upper end being ivoted to therear end of the Jfront member, t e front end of the Jfront member beingpivoted to the door and the top member being pivoted to the body of thecar at its upper end and the lower end being pivoted to the rear memberbelow the point on the rear member where the front member is pivotedthereto.

5. In combination with a car body having a door pivoted thereon, atoggle one end being pivotally connected to the car truck and the otherend being pivotally connected to the car body, and a reach bar pivotallyconnected to the toggle and to the door of the car.

In witness that I claim the foregoing I have hereunto subscribed my namethis 22nd day of April, 1907.

GEORGE O. JOHNSON. Witnesses:

EDMUND A. STRAUsE, MYRTLE A. JONES.

